78359958 has 12 divisors (see below), whose sum is σ = 169779948. Its totient is φ = 26119980.

The previous prime is 78359927. The next prime is 78359959. The reversal of 78359958 is 85995387.

It is a super-2 number, since 2×78359958² = 12280566035523528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78359959) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2176648 + ... + 2176683.

It is an arithmetic number, because the mean of its divisors is an integer number (14148329).

Almost surely, 2^78359958 is an apocalyptic number.

78359958 is an abundant number, since it is smaller than the sum of its proper divisors (91419990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78359958 is a wasteful number, since it uses less digits than its factorization.

78359958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4353339 (or 4353336 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 54.

The square root of 78359958 is about 8852.1160182185. The cubic root of 78359958 is about 427.9221151259.

The spelling of 78359958 in words is "seventy-eight million, three hundred fifty-nine thousand, nine hundred fifty-eight".